File:Britannica Goniometer Vertical-Circle.png

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Description
English: Technical illustration of a vertical-circle goniometer.
Date published 1911; instrument made in 1809
Source Encyclopædia Britannica, 11th ed., Vol. 12, p. 234
Author unknown; instrument by W. H. Wollaston
Permission
(Reusing this file)
Public domain This image comes from the 13th edition of the Encyclopædia Britannica or earlier. The copyrights for that book have expired in the United States because the book was first published in the US with the publication occurring before January 1, 1929. As such, this image is in the public domain in the United States.

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f93ca20d44a527f4a19d3a748dda642c0d85d653

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Date/TimeThumbnailDimensionsUserComment
current12:53, 5 August 2009Thumbnail for version as of 12:53, 5 August 2009516 × 807 (22 KB)Bob Burkhardt{{Information |Description={{en|1=Technical illustration of a vertical-circle goniometer.}} |Source=Encyclopædia Britannica, 11th ed., Vol. 12, p. 234 |Author=unknown; instrument by W. H. Wollaston |Date=published 1911; instrument made in 1809 |Permissio
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